JP3351069B2 - Alarm device for reaper - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reaper that cuts turf and the like with a reaper mounted on a lower part of the abdomen or at the front of a traveling vehicle and feeds the turf and the like into a grass container at the rear of the traveling vehicle. It relates to a working machine.

[0002]

2. Description of the Related Art For example, a mowing device such as a front mower mounted on the front of a tractor is used to cut grass and the like, and the cut grass and the like are fed into a grass collecting container at the rear of a traveling vehicle by a transfer device such as a blower. Grasswork machines are well known.

[0003]

In such a mowing and weeding machine, the rear wheel is a steering wheel. Therefore, when the direction is changed right and left after passing through an obstacle such as a tree on the left and right, the operator of the mowing machine works on the mowing machine. The grass container located at the rear of the traveling vehicle may be damaged by colliding with an obstacle by changing the direction to the left or right earlier than expected.

Accordingly, the present invention provides a specially constructed guide provided at the rear of a grass container of a traveling vehicle, and a single obstacle sensor which is operated by forward and backward movement and left and right movement of the guide. The purpose of the present invention is to detect collision of obstacles at an early stage and prevent damage to the grass collection container.

[0005]

The present invention employs the following technical means to solve the above-mentioned problems. That is, the forward pedal 13a for moving the body forward and backward and the reverse pedal
Vehicle equipped with a turf 13b, a mowing device for mowing turf, etc., a transport device for transporting turf etc. mowing by the mowing device,
In a mowing and weeding work machine including a grass collecting container 19 for storing turf and the like conveyed by the conveying device and an elevating device for raising and lowering the grass collecting container 19, a rear portion of the grass collecting container 16 located at the rear portion of the machine, a rear left and right portion. A guide body 22 covering both sides and moving forward and backward and in the left and right direction, an obstacle sensor RT that operates in connection with the forward and backward movement and the left and right movement of the guide body 22, and an alarm BZ and the forward pedal 13a.
Or when the reverse pedal 13b is depressed,
An alarm circuit that issues an alarm when the object sensor RT operates
And the alarm circuit is connected to the pedal 13b (1
3a) is configured so that self-holding works until stepping on
And a warning device for a mowing machine.

[0006]

When the turf is cut by the reaping device while traveling on the traveling vehicle 1, the turf is conveyed by the transfer device and is collected in the weed collecting container 19 at the rear of the machine body. When the traveling vehicle 1 is changed to the left or right during such a harvesting operation or a transportation operation, an obstacle such as a tree collides with the guide body 22 covering the rear part and the rear left and right sides of the grass collection container 16. , Guide body 22
When the vehicle moves forward or laterally, the obstacle sensor RT detects the collision, an alarm is issued from the alarm BZ, and the pilot can know the collision with the obstacle quickly. Continue to press until the alarm BZ is activated
Foot from the forward pedal 13a or the reverse pedal 13b
When the button is released, the alarm BZ stops operating, but self-holding is activated.
The same pedal again in the same direction
When trying to proceed, the alarm BZ is activated, and the operator is
Can be notified.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention shown in the drawings will be described below. First, the overall configuration of the mowing machine will be described with reference to FIGS. Reference numeral 1 denotes a traveling vehicle such as a tractor, which has a large-diameter front wheel 2, 2 and a small-diameter rear wheel 3, 3, and is a front-wheel drive type that normally travels by driving only the front wheels 2, 2. The rear wheels 3, 3 are steering wheels, and when the steering handle 4 is turned, the rear wheels 3, 3 are turned.
Is steered. Note that a configuration in which steering is performed by the front wheels 2 and 2 may be employed.

A steering post 5 is provided at the front of the body, and a seat 6 and a step 7 are provided behind the steering post 5. This step 7 is formed integrally with a fender 8 that covers the front wheels 2. A box-shaped hood 9 is provided behind the seat 6, and an engine (not shown), a fuel tank (not shown), and the like are provided in the hood 9. The inhaled outside air flows through the hood 9 to cool the engine and the like, and is discharged from the rear vent to the outside of the machine.

A mower 10 is connected to a front side of the body via a link mechanism 11 so as to be able to move up and down. This more 1
Reference numeral 0 denotes a mower housing, which is composed of a housing 12 having an opening on the lower side and one side on the left and right sides, and a reaper (not shown) arranged side by side and rotating about a vertical axis. A tubular shutter 14 is connected to a discharge port (not shown) formed on the right side of the cylinder 12. The mowing device (not shown) for the mower 10 is a mower hydraulic motor mounted on the upper portion of the mower housing 12.
(Not shown). A suction blower 15 is connected to the rear end of the shutter 14, and the blower 1
5 is driven by a blower hydraulic motor (not shown).

Next, the grass collecting container 16 and its lifting device will be described. The grass collecting container 16 has a box-like shape made of a thin plate as a whole. An opening is provided at the upper right side of the grass collecting container 16, and the opening is connected to the discharge side of the blower 15. The upper end of the cylindrical body 17 is communicated. The lower part of the grass collecting container 16 is supported by a parallel link 18, and the parallel link 18 is moved up and down by a lift cylinder 19 to lift the grass collecting container 16 upward. The configuration is such that the dump cylinder 20 can rotate upward about the lower rear portion. A lid 21 is provided on the rear side of the grass collecting container 16, and when the grass collecting container 16 is rotated upward by the extension of the dump cylinder 20, the lid 21 is associated with the rotation. Are open.

Next, reference numeral 22 shown in FIGS. 1 and 2 denotes a U-shaped left / right guide portion 22a, 22b,
Rear guide portion 22c and connection guide portion 22 for connecting the upper and lower sides
d, the guide body 2
Numeral 2 is integrally attached to the lid 21 so as to cover the outer peripheral portion of the lid 21 at the rear of the grass collecting container 16, and is configured to move integrally by opening and closing the lid 21.

As shown in FIG. 3, the lid 21 on the grass collection container 16 side is provided with a support portion 23, and the connection guide portion 22d is provided with a support plate 24. The long hole 24a in the front-back direction of the support plate 24 is fitted to the pin 26 of the support portion 23 to support the guide body 22 so as to be movable in the front-rear direction and rotatable in the left-right direction. The guide body 22 holds a predetermined relative position with respect to the lid body 21 with a spring 32 interposed between the guide body 22 and the body 21. Support part 23 of grass collection container 16
, A limit switch (obstacle sensor) RT is attached, and an operation piece of the limit switch RT is arranged to face the concave portion 24 b of the support plate 24.

Next, FIG. 4 will be described. FIG. 4 is an electric circuit diagram for sounding a buzzer BZ based on the operation of the limit switch RT. RT is a limit switch having the function of an obstacle sensor, and is configured such that when the guide body 22 moves in contact with the obstacle, the operation piece is pushed and turned on. SF is a forward switch that is turned on when the forward pedal 13a of the traveling vehicle 1 shown in FIG. 1 is depressed, and SR is a reverse switch that is turned on when the reverse pedal 13b of the traveling vehicle 1 shown in FIG. SF2 is OFF when the forward switch SF is ON, and O when OFF.
N is the switch. The reverse switch SR and the switch SR2 have a similar relationship, and when one is ON, the other is OFF.

If the limit switch RT of the obstacle sensor is turned on while the forward switch SF is turned on, a current flows through the diode D1 and the relay RF operates. Therefore, the relay contact RFS closes and the buzzer BZ sounds. The same applies to the case of reverse travel, where the reverse switch SR is ON,
When the limit switch RT is also turned on, a current flows through the diode D2, and the relay RR is activated.
RS closes and buzzer-BZ sounds.

With this configuration, when the traveling vehicle 1 moves forward or backwards, when the limit switch RT is turned on, the buzzer-BZ circuit is closed, and the buzzer-BZ sounds and an alarm is issued. Instead of this embodiment, a brake pedal (not shown) of the traveling vehicle 1 may be operated to stop traveling in response to the ON of the limit switch RT instead of the buzzer-BZ sounding. .

Next, another embodiment of the connection structure between the rear end of the shutter 14 and the suction blower 15 will be described with reference to FIG. A screwing ridge 27 is formed at the start end side of the suction cylinder portion 15a of the blower 15, and the recess of the relay bellows hose 28 is fitted to the screwing ridge 27 and screwed and connected. Configuration. A support plate 30 having a presser bar 29 at its tip is provided on the outer periphery of the terminal end of the shutter 14 so as to be vertically rotatable.
The end of the shutter 14 is inserted into the start end of the relay bellows hose 28, and the pressing rod 29 of the support plate 30 presses the concave portion of the relay bellows hose 28, and And a relay bellows hose 28. With such a configuration, when grass is clogged in the shutter 14 part, the relay bellows hose is used without tools.
Can be removed from the shutter 14 and the blower 15 to facilitate maintenance.

Next, the operation of the embodiment shown in FIGS. 1 to 5 will be described. When performing grass harvesting work such as turf, the mowing device (not shown) of the mower 10 is rotated to move the traveling vehicle 1 forward. Then, the turf and the like are cut by the mowing device of the mower 10, and the cut turf and the like are sent into the grass collecting container 16 by the wind generated by the mowing device and the suction wind of the blower 15. When the grass collection container 16 is full, the traveling vehicle 1 is moved to a discharge place such as turf, and the lift cylinder 19 is extended.
The grass container 16 is lifted and then the dump cylinder 2
0, the grass container 16 pivots upward and rearward about the lower rear portion thereof, and in association with this rotation, the lid 21
Is opened, and grass and the like fall and are discharged.

In this manner, the mowing and collecting work is performed. When the traveling vehicle 1 is moving forward, the forward pedal 13a is depressed, the forward switch SF is turned on, and the traveling vehicle 1 moves forward. . At the time of such a forward movement, if an obstacle such as a tree hits the guide body 22 covering the grass collecting container 16, the limit switch RT is turned on,
The buzzer forward relay contact RFS is activated, the buzzer BZ sounds and an alarm is issued. Then, when the driver depresses a brake pedal (not shown) to stop the traveling vehicle 1 and releases his / her foot from the forward pedal 13a, the forward switch SF is turned off.
F, the forward running stops, and the buzzer-BZ stops.

In order to escape from the obstacle, the reverse pedal 1
When the reverse switch SR is turned on and the reverse switch SR is turned on, the traveling vehicle 1 moves backward, the guide body 22 separates from the obstacle, and returns to the normal position by the spring 32, the limit switch RT is turned off, and the buzzer-BZ stops sounding. . When escaping from an obstacle, do not step on the reverse pedal 13b.
If the forward pedal 13a is depressed again by mistake, the buzzer-forward relay contact RFS remains self-held, so that the buzzer-BZ sounds again and it is possible to know that the operation is erroneous.

Thus, the lid 2 at the rear of the grass collecting container 16 is
When an obstacle collides with the guide body 22 provided on the left and right sides or from the rear, the guide body 22 turns left or right or moves forward, and the single limit switch RT is moved. When it is turned on, the collision can be known, and the grass collection container 16 can be prevented from being damaged.

[0021]

According to the present invention, as described above, the grass container 1
6 To the rear of the vehicle,
Detection can be performed by a single obstacle sensor (limit switch) RT, and damage to the grass collection container 16 can be prevented. Also an obstacle
To escape from the other side without stepping on the pedal in the opposite direction.
If you try to go in the same direction as above, the alarm BZ will be activated again
Therefore, the operator can be notified of the erroneous operation .

[Brief description of the drawings]

FIG. 1 is an overall side view.

FIG. 2 is an overall plan view.

FIG. 3 is a plan view and a cut side view of a main part.

FIG. 4 is an electric circuit diagram and a side view of a pedal portion.

FIG. 5 is a perspective view and a cut side view of a main part.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Running vehicle 2 Front wheel 3 Rear wheel 4 Steering handle 5 Steering post 6 Seat 7 Step 8 Fuender 9 Bonnet 10 Mower 11 Link mechanism 12 Mower housing 13a Forward pedal 13b Reverse pedal 14 Shutter 15 Blower 16 Weeding container 17 Cylindrical body Reference Signs List 18 parallel link 19 lift cylinder 20 dump cylinder 21 lid 22 guide body 22a left guide part 22b right guide part 22c rear guide part 22d connection guide part 23 support part 24 support plate 27 screwing projection 28 relay bellow hose 29 presser bar 30 support plate 31 pin 32 spring RT limit switch (obstacle sensor) SF forward switch SF2 switch SR reverse switch SR2 switch RFS relay contact RRS relay contact BZ buzzer (alarm) D1 die - de D2 diode - de

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) A01D 75/18 A01D 34/63 A01D 34/64

Claims (1)

(57) [Claims] 1. A forward pedal 13a for moving an aircraft back and forth.
A traveling vehicle 1 equipped with a reverse pedal 13b 1, a mowing device for mowing grass and the like, a transport device for transporting turf and the like cut by the mowing device, a grass collecting container 1 for storing turf and the like transported by the transport device.
9. In a mowing and weeding work machine comprising an elevating device for lifting and lowering the weeding container 19, the weeding container 16 located at the rear of the machine.
A guide body 22 covering the rear part, the left and right sides of the rear part, and moving back and forth and moving in the horizontal direction.
An obstacle sensor RT that operates in association with the front-rear movement and the lateral movement of the vehicle, and an alarm BZ are provided.
3a or when the reverse pedal 13b is depressed
An alarm circuit that issues an alarm when the obstacle sensor RT is activated
This alarm circuit is built in and the pedal 13b on the opposite side
(13a) is configured so that self-holding works until stepping on it.
An alarm device for a mowing and harvesting work machine, wherein